Bar's Leaks Radiator Stop Leak Tablets
Bar's Leaks Radiator Stop Leak Tablets
Hero image 0 of Bar's Leaks Radiator Stop Leak Tablets, 0 of 7
Clearance
Visit the Bar's Leaks Store

Bar's Leaks Radiator Stop Leak Tablets

Key item features

  • Professional Strength: Professional strength formula ensures effective sealing of leaks and seepage.
  • OEM Approved: Used and approved by many OEM auto and truck manufacturers worldwide.
  • Versatile Compatibility: Works with all types of antifreeze or water, enhancing their performance.
  • Leak Sealing: Seals internal, external, and coolant-to-oil leaks efficiently.
  • Rust and Scale Prevention: Inhibits the formation of rust and scale within the cooling system.
  • pH Neutralization: Neutralizes pH imbalance to maintain optimal system conditions.
  • Electrolysis Control: Controls electrolysis to protect the cooling system components.
  • Lubrication Benefits: Lubricates the cooling system, including the water pump, for smooth operation.
Generated by AI
Current price is Now $1.07
You save $4.26
was $5.33
60.8 ¢/oz
Price when purchased online
  • Free 90-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $1.07
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $1.07

How do you want your item?

Try 30 days for just $1! Choose a plan at checkout.
How do you want your item?
Ships to
Arrives by Thu, Jul 23
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible
walmart plus

Try 30 days of Walmart+ for just $1!

T&C apply.

About this item

Product details

Specifications

Warranty

Customer ratings & reviews

4.5 out of 5 stars
stars
66 ratings54 reviews
How item rating is calculated
  1. 5 stars73% (48)
  2. 4 stars17% (11)
  3. 3 stars3% (2)
  4. 2 stars2% (1)
  5. 1 star6% (4)

Reviews summary

Pros

  • : Requires minimal technical knowledge.
  • : Seals small radiator and coolant system leaks.
Generated by AI
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 54 reviews

May 30, 2026
Daytripper
5 out of 5 stars review

Bar;s Leaks Radiator Stop Leak for the win!

[This review was collected as part of a promotion.] I bought Bar's Leaks Radiator stop leak to use on my 1981 Chevy C-10 pickup, not a major leak, but I use the truck for car shows and by golly, it worked like a champ and no more leaks! I've been using Bar's leaks products for at least the last 40 years, and glad they are still around with their awesome products!

Review from Rislone
Helpful?1QK86T80F58T7239452890
Jul 10, 2025
Mr Ouija
5 out of 5 stars review

Worked Like A Charm!

[This review was collected as part of a promotion.] These coolant tablets COMPLETELY sealed up the leaks of coolant seeping by my high performance motor's head studs. I tried everything to try stopping the coolant leaks coming from my head studs. I removed and reapplied thread sealant multiple times and could not get the studs to stop seeping coolant until I just threw these tabs in my radiator and I could literally watch the leak stop before my eyes. Great Product!!! Works amazingly!!!

Review from Rislone
Helpful?1QK86T80F58T7239452890
Dec 17, 2025
Bunnie
5 out of 5 stars review

Fixed my husband's radiator!

[This review was collected as part of a promotion.] My husband's pt cruiser had some issues with the radiator. He used the bars leak radiator stop leak and it fixed the issues he was having. We were recommended this product by a family member and they recommended right!

Review from Rislone
Helpful?1QK86T80F58T7239452890